Dear FS team,

in my analysis I'd like to correlate two variables such as cortical myelination and neurophysiological metrics, regressing-out thickness and age of the subjects. I have only one group.

My FSGD file should be:

GroupDescriptorFile 1
Title NF_Myelin

Class Main
Variables NF age
Input fs_VF Main 1.57 46
Input fs_RF Main 1.5 22
Input fs_SE Main 1.09 30
.....

My intercet2.mtx should be:

1 0 0 0

My slope2.mtx should be:

0 1 0 0

This is my line command:

mri_glmfit --y rh.t1t2ratio_20_fmed_3sm_decurv.fsavg.mgh --fsgd T1T2_NF_AGE_HS.fsgd --pvr lh.thickness_20.fsavg.mgh --C intercept2.mtx --C slope2.mtx --surf fsaverage lh --o lh_NF_AGE_T1T2_thickness

Is everything ok?

Thanks a lot

Raf